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Huayu can supply cellphone,. Hidden inside a Gum, it is the world's smallest micro-DVR as well as the world's first pen-based video recorder with voice. 2. It features with high sensitivity of the microphone: within 15 square meters, the clear voice can be recorded. With high-definition camera, it is helpful to provide strong evidence for the public security departments and court. Real time recording in AVI video format 3.Exquisite looking, smooth ball-point pen to write. The replacable cartridge is durable and environment-friendly. 4. Apply to any computer with USB and other electronic equipment.